Lesson 1 (graph, ir, non)

pictures or words painted or drawn on a wall, building, etc.

an outdated system of sending messages over long distances by using wires and electrical signals

the signature of a famous person

not preset or real; not existing

not involving words; not able to speak

not normal or usual; not following the usual rules about

a part of a piece of writing that deals with one subject, begins on a new line, and is made up of one or more sentences

not important or relating to what is being discussed right now

not thinking clearly; not able to use reason or good judgment

a shiny, black substance that is used in pencils